Types of Fire Sprinkler SystemsThe right fire alarm sprinkler system stops the fire, limits the damage.

Wet, Dry, or Pre-Action or Deluge Fire Sprinkler Systems?

Whether you have an industrial, institutional or commercial building, there’s a lot of people, property, and processes to protect. That’s why Marco delivers the best options in fire sprinkler systems technology. From sprinkler heads and backflow prevention valves to diesel and electric fire pumps, Marco offers top of the line products from industry leaders like Viking, Reliable, Victaulic, Aurora, and Ames.

Wet Sprinkler Systems

A wet sprinkler system is the most prevalent and cost-effective of the four types of fire sprinkler system technologies. Continually charged with water, these systems are designed to discharge at a fixed temperature which extinguishes and controls the spread of fire. A wet sprinkler system is very reliable and is a time-tested technology for its fire suppression due to their efficacy and relatively low cost.

Pre-Action Sprinkler Systems

Like clean agent suppression systems, pre-action fire sprinkler systems are used in environments where water could potentially damage high-valued assets like those housed in vaults, museums, libraries or data centers. Pre-action sprinkler systems are charged with pressurized air or nitrogen. The water is held back by an electric pre-action valve which is controlled by a supplemental fire detection system. This allows for investigation of the emerging fire before water is released, thus sparing high-value assets from irreparable water damage.

Dry Sprinkler Systems

Dry sprinkler systems are used in unconditioned spaces where temperatures have the potential to fall below freezing. Though effective, dry sprinklers generally require more maintenance and are typically more costly to install and maintain. Dry-pipe systems can also be used as subsystems for more complex wet systems such as in attics, warehouses or refrigerated storage areas.

Deluge Sprinkler Systems

Similar to pre-action sprinklers, deluge sprinkler systems are controlled by an early warning detection system which commences the flow of water via an electric deluge valve. Deluge sprinkler systems feature open sprinkler heads, so that when the valve activates, water is released through all heads simultaneously. High-capacity water release is needed in large areas such as airplane hangars, fuel-loading facilities, power plants, as well as facilities which store or process chemicals or hydrocarbon.